The Family Foundation, a Christian and conservative nonprofit organization based in Richmond, Virginia, was supposed to have a group dinner with some donors at the Metzger Bar and Butchery in Richmond on Wednesday. To their shock, the group’s leaders were told 90 minutes before their reservation that it had been canceled — and what’s more, that they were not welcome in the establishment, period.

Metzger posted on social media that it had discriminated against these diners because …